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(No Model.) 7 2 Sheets-Sheet 1.

S. J. DE LUE.

LATHE FOR TURNING LASTS AND OTHER ARTICLES. No. 339,274. Patented Apr. 6, 1886.

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I Wflngawew. I v t u/efiefflelue (No Model.) 2 Sheets-Sheet 2.

S. J. DE LUE.

LATHE FOR TURNING LASTS AND OTHER ARTICLES. N0. 339,274.

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iinrrnn STATES PATENT OFFICE.

SAMUEL J AGOB DE LUE, OF NATIOK, MASS, ASSIG-NOR, BY MESNE ASSIGN- MEETS, TO HIMSELF AND JOSEPH RICH ATV OOD, OF SAME PLACE.

LATHE FOR TURNING LASTS AND OTHER ARTICLES.

SPECIFICATION forming part of Letters Patent No. 339,27 dated April 6, 1886.

Application filed December 29, 1885. Serial No.186,97-l. (No model.)

To aZZ whom, it may concern: turning of the heel and toe portions of such Beit known that I, SAMUEL J noon DE LUE, blank. of Natick, in the county of Middlesex, of the In Fig. 2 this blank is shown at A in full Commonwealth of Massachusetts, have inlines, and in Fig. by dotted lines, the parts 5 5 vented a new and useful Improvement in of it projecting beyond the heel and toe and Lathes for Turning Lasts or Various other to be removed by the cutter-wheel being rep- Articles Irregular in Form; and I do hereby resented at a and I).

declare the same to be described in the follow- In Fig. 3 the pattern is exhibited at B as ing specification, and represented in the acsupported by mechanism like that employed 6o companying drawings, in whichfor sustaining and revolving the partially- Figure 1 is a top view, Fig. 2 a side elevaturned blank. tion, and Fig. 3 an end view, of a Frohock In Figs. 1, 2, and 3 the cutter-wheel of the last-turning machine provided with my inlathe is shown at C, and the pattern-wheel at ventiou, the nature of which is defined in the 1), they being supported and provided with i5 claims hereinafter presented. Fig. 4 is a mechanism for operating them, such as is front elevation, Fig. 5 a median longitudicommon to the Frohock lathe. The last and nal section, Fig. 6 an end view, and Fig. 7 pattern holding and revolving mechanisms a transverse section, of the mechanism for are likewise represented in the said figures supporting and revolving a last while the at E and F, such being substantially as shown 20 end or heel and toe portions thereof are bein the remaining figures and now to be deing turned automatically in the lathe. Fig. 8 scribed. is a transverse section of the rear clamps and In Figs. 1 and 2 the ordinary revoluble artheir operative devices used for clamping the bors of the blank and pattern are shown at 0 last at the sides of its heel. Fig. 9 is a view and d, they being provided with the usual 2 5 showing the front clamps and their operative mechanism for synchronously revolving them. mechanism, such front clamps being for grasp- On each of these arbors there is fixed a spuring thelast j ust in advance of its instep. Fig. gear, 0, that engages with a pinion, f, below 10 is a horizontal section of the mechanism for it, and fixed on a shaft, 9. The said shaft has operating the said front clamps. on it two gears, h and-'1', (see also Figs. 4, 5, 6, 8 3o Inthe well-known Blanchard and Froand 7,) the first of which is splined to the shaft hock last-turning machines as ordinarily and pivoted to one of two uprights, H and I, constructed andused,ashoe-last can be turned, extending upward from a base-plate, K, into except at its toe and heel portions,of the blank which they at their feet are dovetailed, in orprojecting therefrom, which subsequently der that they may be movable within it length- 8 5 5 have been removed by a workman with snitwise of it. The gear i is fastened upon the able tools in hand, in order to properly form shaft g. The upright H is movable toward or or finish the heel and toe of the last. from the upright I,in order to properly adjust It is the purpose of my present invention to the heel-clamps, to be described, to the last to effect, automatically, the removal of such porbe turned at its heel and toe, a set screw, k, 0 4o tions and the reduction of the last to proper going through a slot, M, in the base of the form, both at its toe and heel, all of which can standard, and provided with a nut, Z, serving be accomplished by the mechanism hereinto clamp the upright to the base-plate. One after described, constituting my invention or base-plate rests upon the ways a, for supporta part thereof. ing the tail'stock of the last, the other base- 5 4 5 The Frohock machine or lathe shown in the plate resting 011 the ways 0, for sustaining the drawings has, instead of the ordinary depattern tail-stock. I vices for supporting and revolving the pattern Each standard has a circular opening,withand blank, others of a different description, in which is pivoted an annulus, 1), that exwhich sustain and operate such pattern and tends beyond the standard and has upon the 50 a partially-turned blank, and revolve them in part so projecting gear teeth q. The gearorder for the rotary cutter-wheel to effect the teeth of the two annuli engage with the gears h and i, which, when in revolution, cause the said annuli to simultaneously revolve. From these annuli there extend inward two fiat projections or shelves, 1* and s, that marked 1 being directly over, within, and upon the other. Two jaws or clamps, t t, are supported on the shelf 8, so as to be movable rectilinearly toward and, fron1 one another, they being provided with an adjusting-screw, u, pivoted to the shelf and screw-threaded, so as to cause them, when it is revolved one way,to approach each other, and to depart from one another on its being turned the opposite way. These jaws or clamps are to graspthe last on the flanks of its heel portion.

Two other clamps for grasping the last directly in front of its instep are shown at 'v '11, they being formed as represented, and fulcru med to two slides, 10 w, arranged and to slide rectilinearly upon the shelf 1'. An adjustingscrew 00, pivoted in the shelf and screwed through the slides, serves, when turned one way, to cause them to approach each other, and when it is revolved in the other way to cause them to depart from each other. The said clamps 'v t have screwed down through their tails '0 other adjusting-screws, y, which rest at their feet on projections w from the slides w. The adjusting-screws y serve to tip the clamps upon the last, the screw no answering to adjust said clamps up to the last.

Between the two standards H and I are two curved posts, L and M, that project upward, as represented, from the shelf r. A curved or arched arm, N, hinged to the upper part of the post L, extends over andlapsnponothe other post, and is held in engagement therewith by a nut, Z, (see Fig. 7,) that screws upon a screw, a, extending from the post M through the arm N, which at its free end is furcated to enable it to receive the screw and to be raised off it. A screw, 12, screwed down through the crown or middle of the arm N, and against the crown of the last,serves to aid in holding the last in place when it is in the clamps. A spiral spring, 0, fixed to the post L and arm N, is to automatically raise the arm on the nut 2' being turned back on its screw.

Then a pattern-lastF is secured in the clamps for holding it, and a partiallyturned last, as shown by dotted lines at A in Fig. 5, is secured within the clamps or devices, as described, for holding it, and the arbors c and d are put in revolution, both pattern and partially-turned last will be revolved, and by means of the pattern and cutter-wheels and their operative mechanism such partiallyturned last may be farther turned down at its heel and toe, to there correspond in shape to those of the heel and toe portions of the pattern'last.

I claim 1. The combination, with a last turning lathe-frame and the pattern and cutter-wheels thereof, provided with the usual mechanism for operating them, relatively to the pattern and to a blank to be turned, of mechanisms, substantially as described, applied to the ways of such frame, as set forth, and being to support and revolve a pattern-last and a partiallyturned last, in order to enable the latter to be automatically turned at its heel and toe by the cutterwvheel, each of such mechanism consisting of the bed-plate K, the open standards H I, and the revoluble annuli p and their clamps, as

described, such annuli and clamps being pro-.

vided with mechanism for operating them, essentially as set forth, and the said annuli being not only. extended and pivoted within the or pattern on the flanks of its heel portion W and the other in front of its instep, all being as specified.

2. The mechanism, substantially as described, for supporting and revolving either a pattern-last or a partially-turned last, as explained, such mechanism consisting of the bed-plate K, the open standard H I, and the revoluble annuli p and their clamps, as described, such annuli and clamps being provided with mechanism for operating them, as set .forth, and the said annuli being not only extended and pivoted within the said standards, so as to be revoluble therein, but provided with clamps it and o '0, as described, one set thereof being to grasp the last or pattern on the flanks of its heel portion and the other in front of its instep, all being as specified.

8. The combination of the posts L and M, (projecting from the shelf r,) and the arched arm N, hinged to one of the said posts and provided with the screw 1/, as set forth, with the bed-plate K, the open standards H I, and the revoluble annuli p and their clamps, as described, such annuli and clamps being provided with mechanism for operating them, as set forth, and the post M having the screw a and nut z, for holding to it the said arm N, as specified.

SAMUEL JACOB DE LUE.

WVitnesses R. H. EDDY, R. B. TORREY.

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